cast.h

/* crypto/cast/cast.h *//* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) * All rights reserved. * * This package is an SSL implementation written * by Eric Young (eay@cryptsoft.com). * The implementation was written so as to conform with Netscapes SSL. * * This library is free for commercial and non-commercial use as long as * the following conditions are aheared to. The following conditions * apply to all code found in this distribution, be it the RC4, RSA, * lhash, DES, etc., code; not just the SSL code. The SSL documentation * included with this distribution is covered by the same copyright terms * except that the holder is Tim Hudson (tjh@cryptsoft.com). * * Copyright remains Eric Young's, and as such any Copyright notices in * the code are not to be removed. * If this package is used in a product, Eric Young should be given attribution * as the author of the parts of the library used. * This can be in the form of a textual message at program startup or * in documentation (online or textual) provided with the package. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * "This product includes cryptographic software written by * Eric Young (eay@cryptsoft.com)" * The word 'cryptographic' can be left out if the rouines from the library * being used are not cryptographic related :-). * 4. If you include any Windows specific code (or a derivative thereof) from * the apps directory (application code) you must include an acknowledgement: * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" * * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * The licence and distribution terms for any publically available version or * derivative of this code cannot be changed. i.e. this code cannot simply be * copied and put under another distribution licence * [including the GNU Public Licence.] */#ifndef HEADER_CAST_H#define HEADER_CAST_H#ifdef __cplusplusextern"C" {
#endif#include <openssl/opensslconf.h>#ifdef OPENSSL_NO_CAST#error CAST is disabled.#endif#define CAST_ENCRYPT 1#define CAST_DECRYPT 0#define CAST_LONG unsigned long#define CAST_BLOCK 8#define CAST_KEY_LENGTH 16typedefstruct cast_key_st
{
CAST_LONG data[32];
int short_key; /* Use reduced rounds for short key */
} CAST_KEY;
#ifdef OPENSSL_FIPS void private_CAST_set_key(CAST_KEY *key, int len, constunsignedchar *data);
#endifvoid CAST_set_key(CAST_KEY *key, int len, constunsignedchar *data);
void CAST_ecb_encrypt(constunsignedchar *in, unsignedchar *out, const CAST_KEY *key,
int enc);
void CAST_encrypt(CAST_LONG *data, const CAST_KEY *key);
void CAST_decrypt(CAST_LONG *data, const CAST_KEY *key);
void CAST_cbc_encrypt(constunsignedchar *in, unsignedchar *out, long length,
const CAST_KEY *ks, unsignedchar *iv, int enc);
void CAST_cfb64_encrypt(constunsignedchar *in, unsignedchar *out,
long length, const CAST_KEY *schedule, unsignedchar *ivec,
int *num, int enc);
void CAST_ofb64_encrypt(constunsignedchar *in, unsignedchar *out,
long length, const CAST_KEY *schedule, unsignedchar *ivec,
int *num);
#ifdef __cplusplus}
#endif#endif